Sawmill set-works.



l A. A. DE LoAoH.

SAWMILL SET WORKS.

APPLIUATIOH FILED JAN. 6,1906.

4 SHEETS-SHEET L Patented sept. 22, i908` A. A. DE LOACH; e

sAwMm, SET WORKS. Y l APPLIcATIox FILED JAN. 6,1906.

- Patented SeptL 22, 19098.

4 SHEETS-SHEET 2. l

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A. A. DE LOACH.

SAWMTLL SET WORKS. nrmonmx mm un. 6,1903.

Patented sept. 22, 1908 N qq d, www):

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`lai-ged scale of thev clutch devices.

I ALONZO AARON DE LOACH, OF ATLANTA, GEORG SAWMILL SET-WORKS.

T o all' ywhom it may concern:

Be it. known that I, ALONZO A. DE LOACH, a l

citizen of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have invented certain new and useful Improvements in Sawmill Set-Il'orks and I do hereby declare the following to be a full, clear,and exact desori tion of the invention, such as will enable ot 1ers skilled in the art to which it appertains to make and use the same.

My invent-ion relaies to improvements in saw mill set works, and the o bject of my invention is to produce set-works operated by friction connections, thus doing ais-ay with the lost motion incident to the numerous joints and bearings of ratchet set-works.

- With this object in view, my invention con-` sists in the construction and combinations of parts as hereinafter described and claimed.

In the accompanying drawings z-Figure 1 is a top plan View of a sawmill carriage showing my set-works applied-thereto. Fig. 2 is a cross section of the friction devices taken on the line 2-2 of Fig. 4 Fig. 3 is an end view of the set works, the carriage beams and rails being shown in cross section. Fig. 4 is an enlarged plan view part-1y in section showing the gearing and friction devices. Fig. 5 is a cross section on the line 5-5 of Fig. 4. Fig. 6 is a plan view of a modified form partly in Fig. 7 is a cross section on an en- Fig. 8 is an end View of the modified form, the set shaft being shown in cross section. a cross section of t-he friction devices on the j. line 9 9 of Fig. 8, and Fig. 10 is a detail view showing the upper part of the operating lever.

In Figs. 1 to 5, a represents beams support` ing the rails b and c, the rail b heilig triaiigular in cross section, with its point entering a grooved wheel d on the saw mill carriave. The other wheel e of the carriage is of tie ordinary type. l

f represents the side beams of the carriage,

and g one of the cross beams thereon.

z, represents the ordinary knees carrying the adjusting dogs, and 'i represents the set shaft.

Bolted or otherwise firmly fastened to the cross beam g and side beam f is a casting j made right angled to tit over said beams, and provided with projecting arms Z and m, which furnish supports for the set shaft and operatmg gearing.

Specification of Letters Patent.

Application led- January 6, 1906. Serial N o. 294,932.

Fig. 9 is Patented sept. 22, 190e. l

graduated distances on its outer face, in which stoppiiis o may be placed.` This quadrant is provided with an enlarged foot bolted or otherwise secured to thecasting j.

Running loosely on the set shaft isa casing q provided with a central web i', andhaving open faces on each side of this web. Oneof these faces is provided with gear teeth s. To the central web r is fastened the clutch faced member t. the casing g is mounted a disk u havingrecesses ein its outer face, and between the disk u and the casing are antifriction rollers w, preferably four or six in number, andi springs :11, tend normally to force .said rollers outward against the casing q so as to produce a wedging action between said casing and the disk u.. It is obvious that 'if the disk u is tiiiiied in the direction of the hands of a.

watch from the position shownin Fig. 2, the

n is a quadrant provided with holes at.

Within the other face of sure, however, that the casing q shall not rotate on the left handed motionof the disk u, I have provided antifriction rollers. y located in a recess z on the upwardly projecting portion 1 of the casing j. rollers y always in contact with the casing g. The disk u is provided with an upwardly extending projection 3, to which the operating lever 4 is bolted or otherwise fastened. 5 represents an operating handle for said lever, provided with a hand hold 6.

7 represents a stop block slidably mounted oii the lever 4, and adapted to engage with one of the pins o. Sometimes, however, it is desirable to move the lever 4 nearly the full length of the quadrant, and to obviate the necessity of pulling out the pins o, I have provided means for lifting the stop block 7,

'so that it may pass over the pins o, said means consisting of a hub 8 fixedto the rod 5, and provided with a projecting arm 9, which is connected by a chain l() with the stop block 7. freely in the link 11, which is pivoted to the upper end of the lever 4, and the arm 9 in the position shown in Fig. 3 prevents the rod 5 from dropping down. It is obvious that a movement of the lever 4 to the right from the )osition shown in Fig. 3, will move the disk u lke the movement of the hand of a watch,

Springs 2 keep the The rod 5 of course rotates Ilf on, is a clutch 33 which is moved by means Les 'with two gear wheels 14 and 15, the gear 17 alternately.

vis bolted or otherwise secured a casting comand this disk will carry with it the easing q l and clutch faced member t, but that. the reverse movement of said lever 4 will have no effec-t upon the casing q.

In bearings such as 12 on the casting is carried a short shaft 13 which is provided wheel 14 meshing with the gear teeth s, and the Urear wheel 15 niesiiing with the gear wheel 16 which runs loosclvon the set shaft fi. The hub of the -gear wheel 16 is extended, forming a clutch' faced member 17.

18 represents a clutch keyed to the set shaft i., but slidably mounted thereon, and provided with a clutch face at each end thereof, adapted to engage the clutches t and The clutch 1S is slidably mounted on the shaft i, and may be shifted back and forth by means of the rod 19 which is provided with a fork 20 having pins 21 engaging in a groove 2; in the clutch. 'llie iod 19 is provided with a vertical arm 23, having a weight 24, so that said rod will remain in either of its adjusted positions.

.The parts being in the' position shown in Fig. 1, it is obvious that a movement of the lever 4 to the right will througii-the medium ofthe gears 5,14, 15, 16, and the clutches 17 and 1S, move the set shaft opposite to the hands of a watch, producing the reversing motion of the knees and dogs. On the other hand, if the clutch 1S is shifted so that it will be disengaged from the clutch 17 and en gaged with the clutch t, it will move the disk il, in the directionof movement of the hands of a watch, producing the ordinary setting motion. The movement of the lever l to the left produces 'no ell'ect on the set-works. The gearing is so )roportioned that the reversing motion is about three times as fast as the setting motion.

In the form shown in Figs. 1 to 5, a single acting friction set-works shown, and in the form shown in Figs. 6 to 10, a double acting friction set works is shown, which will now' be described.

In Fig. S, the dotted lines 25 represent av part of the carriage frame, to which is securely bolted or otheiwvise firmlv secured a casting 26, provided with bearings through which passes the set shaft 27which casting supports the set-works. To the casting 26 )osed of the. two arms 2S and 29 connected by the quadrant shaped portion 30, provided with a scale 3l, and a stop screw 32. Keyed to the shaft 27, but slidabiv mounted thereof the rod 34, provided with a lever 3G and an ordinary fork 37, such as already described. This clutch is adapted to engage either with a. clutch 3S on the friction part of the device as shown in Fig. 6, or with a clutch 39 on the bearing of the gear wheel 40, which meshes with a gear wheel 41 carried on a short shaft mount-ed in bearingssuch as 42. This shaft also carries a gear wheel 43, the parts thus described being similar to those described in connection with the single acting form.

44 represents a casing open at both sides, provided with an internal web 45, which carries the clutch 3S. On one side of 'the web internal gear teeth 46 :are provided, which mesh with the gear wheel 43. On the other side of the web 45 the projecting part 52 of the casing 44 is provided oi its outside with inclined. faces 47, and thc interior of said projecting portion is circular. Surrounding said inclined faces is a casing 4S made in the form of a hollow c vlinder, and having a closed end 49. Between the inclined faces 47 and the casing 4S are. lo lated a series of antil'i'iction rollers 50, preferably four or six `in number, and 'in connection with eac-h roller a spring or springs 51 is used, -keeping said rollers always in contact with the inclined faces Ll7 and the casing 4S. It is obvious from the construction described, that a rotation of the part having the inclined faces 47 in the direction of the hands of a. wat-ch, will carriY with it the casing 48, while the reverse niotior. will have no ei'ec-t whatever on said casing.

lithin the partwhicli is provided with inclined faces 47, is a disk 53, provided with inclined facts 54. Between these inclined faces and the interior of the )art 52, are located antifriction rollers 55, kept in contact b v springs .36 with the contiguous iarts. It is obvious that a. rotation of the disk 53 op posite to the hands of a watch will carry with it the part 52, but will have no effect on the casing 4S. The movement of the set-works is caused b v the movement of the hand lever 57. This hand lever is pivoted on two pins 58 and 59, and links 60 pivotall)r mounted on these pins are rigidly connected at their upper ends to a pin G1, to which the lever 57 is firmly connected.

The end 49 of the casing 4S is provided with a boss 62, which is connected by .means I of a bent link 63 to the pin 61, so that a movement of the lever from the position in full lines in F ig. S to the position shown in dotted lines, will'move the casing 4S in the direction ofthe hands of a watch. Similarly the disk 53 is provided with a proiecting boss 64 to which is attached a curved link 65,

the other end of which is attached to the pin i 61, and the movement of the lever 57 to the right will carry with it the. link 65, moving the disk in the direction opposite to the hands of a. watch. The cnd 49 of the casing 4S is provided with a curved slot 66 to permit the movement of the boss 64.

From the foregoing description it will be seen that the casing 4S rotates in one direction only, and requires no tripping of pawls A The saine to push back the head blocks. motion of the lever .57, namely, to the right from the posit-ion shown in full lines iii Fig. S, produces a forward or reverse motion lof Avthe set shaft 27, according as the clutch 33 engages the clutch 38, as shown in Fig. 6, or the clutch 39 is shifted over by the lever 36.

The receding or reverse motion of the setv shaft is about three times as rapid as the set'- ting motion on account of the proportions of the gearing. rlhe lever 36 may of course be weighted, if desired, like the rod 19.

On the pin 5S iscai'ried the bent arm 67, provided with a stop block 68, and a pivoted ocking link 69, which also serves as a hand hold. Bending back'the link 69 unlocks thc stop block from the quadrant, and it then may be shifted to any desired position. Then when the link is'rcturned to the position shown in Fig. 8, it locks the stop block in any desired position. It is sometimes desirab c to move the lever 57 past the stop block 68 without disturbing the position of the latter, and for this purpose I have arranged on the lever 57 a sliding block 70, which under ordinary conditions is adapted to engage the stop block 68, but which by means of the link 71 and the bell crank lever 72pivotcd at 73 to the handle 74 of the lever 57, can be lifted up over the stop block 68.

Having thus described my invention, what I claim as new and desireto secure by Letters Patent of the Unit-ed States, is

1. In saw mill set works, the combination with the carriage and set shaft, o f a casting secured to said carriage and carrying the op erative parts' of said set works, a sliding clutch on said shaft, a casinfT provided with gear teeth and with a clutc i f'ace .and also forming one member of a friction clutch, gearing connecting said gear teeth with a gear wheel running loose on said set shaft, said gear wheel being provided with a. clutch face, a disk forming with said casing a friction clutch, and means for oierat-ing said disk, substantially as described.

2. In saw mill set works., the combination of the set shaft, a casing inounted loosely thereon, provided with a clutch face and with gear teeth on one side, said casing having a hollow cylindrical 'projection on the other side,a disk provided with inclined cntaway portions on its periphery cooperating with said easing, friction devices between said disk and casing, a gear wheel ruiming loosely on the set shaft, and provided with a clutch face, gearing connecting said gear wheel with the gear teeth on said casing, a slidable clutch provided with teeth on each end keyed to said shaft, and means for operating said disk, substantially as described.

3. In saw mill set works, the combination of the 'set shaft, a casing mounted thereon provided with a central web, gear teeth and a drical projection on the other side thereof, a disk provided with inclined recesses located witliiitsaid cylindrical portion, anti-friction rollers between said .disk and said cylindrical..

gearing connecting said gear whclftfrthe`r. -nl

gear teeth on said casing, a clutch keyed to said set shaftbut slidably mounted thereon, said clutch being provided with clutch faces at each end, a pivoted lever for shiftingr said clutch, and means for operating said disk, substantially as described.

at. In saw mill set works, thc'comhination of a set shaft, a casing loosely mounted thereon provided with internal gear teeth, with a clutch face on one side thereof, and with aprojecting cylindrical portion on the other side thereof, means for locking said casing against reverse movement, a gear wheel loosely mounted on said shaft andprovidcd with a clutch face, gearing connecting said gear wheel with the gear teeth in said casing, a clutch keyed to said set shaft but slidably mounted thereon, said clutch being provided with a clutch face at each end, a pivoted lever for shifting said clutch, a disk located within thc. cylindrical portion of said casing, and provided with inclined cut-away portions on its periphery, ant.ifriction rollers located in said cut-away portions, springs bearing against said rollers, and Ameans for operating said disk, scribed.4

5. In saw mill set works, the combination,

.on its outer face, antifriction rollers in said cut awa-y iortion, a disk loosely mounted on said set shaft and provided with cnt away portions in its periphery, anti-friction rollers in said cut away portions, a casing inclosing the projecting cylindrical portion of said first-naiiied casing, an operating lever, links connecting said last-named casing and said disk with said operating lever, a double faced clntcli slidably mounted on said set shaft and adapted to engage with the clutch face on saidffirstaiamcd casing, said clutch being keyed to said set shaft., a gear wheel, provided ,with a clutch face, mounted on said set shaft, and device for operating said gear wheel, substantially as described.

6. In saw mill set works, the combination of a setshaft, a gear wheel loosely mounted thereon and irovided with a clutch face, a

clutch slidab y mounted on said set shaft clutch face on one side, with a hollow cylinshaft, gearingiconnecting said gear wheel with substantially as (le- ,the gear teeth 0n said easing, an operating leverf and devices whereby the movement of said lever operates. said eti-sing and thereby said set shaft, substantially :is descrihed.

7. In sow mill set works, the combination of :t setv shaft, :L clutch slidahly mounted thereon and provided with n clutch fileeon each end, means for shiftingsztid clutch, u easing mounted on said shaft and. provided with a clutch face and with gear teeth, n. geur wheel mounted on said shaft. und provided with u clutch fzice, gearing connecting said gen1' wheel and said geur teeth, un operating lever, und friction devices whereby the. movenient of said lever produces settiu;r or ret-sets ting' movement :recording to the position of said shil`tuhle clutch7 substantially :is described.

S. In smv mill set works, the combination of n carriage, n casting on snid carriage enrrying the operative parts of said set works,

having outwardly and upwardly extending portions for the reception. of n. set shaft., said set. shaft., :1 clutch slidahly mounted on said set shaft nfnd having :t clutch fnee' on each end, means for shifting said clutch and holditwhen shil'ted, :i easing mounted on said shaft having :1 central wel) :1nd provided with :i clutch face and with internal gear teeth on one side .of said wel), a. geur wheel mounted on said shul't nud provided witht clutch fave, gearingI connecting said geur wheel :md said gear teeth, en o|- erntinglever and friction devices cooperatingr with .su-id casingr and operated hy said lever, substantially :is deserihed.

ln testimony whereof, I ullix my signature, in presence of two witnesses.

ALONZO AARON DE LOACH. Witnesses:

J. Ctfxxixoufm, Y f" l. J. Iluuxv. 

